In a network using CSMA$/$CD$,$ a$)$ Express the minimum frame temperature in terms of bit rate $($r$),$ maximum distance between two hosts $($d$\_$max$)$ and propagation $($propagation$)$ speed $($v$).$ r $=10$ Mbps$,$ v $=2$ x $10^8$ m$/$s and minimum frame size $2048$ bit d$\_$max